Shoulder - Superoinferior Axial (SI)

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Shoulder - Superoinferior Axial (SI)
Area Covered	Proximal humerus, lesser tubercle of humerus, coracoid process of scapula, scapulohumeral joint
Pathology shown	Fractures and or dislocations of the proximal humerus, oesteoporosis, osteoarthritis, Hill-Sachs defect
Radiographic Anatomy	Shoulder Radiographic Anatomy
IR Size & Orientation	18 x 24cm Landscape
Film / Screen Combination	Detail (CR and DR as recommended by manufacturer)
Bucky / Grid	No
Filter	No
Exposure	55 kVp 8 mAs
FFD / SID	100cm
Central Ray	CR to shoulder joint at an angle of 5° to 15° towards the elbow
Collimation	Four sides of collimation To the affected shoulder joint
Markers	Anterior and lateral marker orientation AP
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Suspended
Positioning	Before undertaking this position check the patients ability to abduct the arm to nearly 90° Have the patient seated close the end of the table Place the IR close to the patient Ask the patient to hold the hand of the affected side and raise the arm to a position near as possible at right angles to the long axis of the body Then have the patient lean laterally over the IR until the shoulder joint is over the centre Bring the elbow to rest on the table Flex the patient elbow and place the hand in a prone position Have the patient tilt the head towards the unaffected shoulder CR to shoulder joint at an angle of 5° to 15° towards the elbow
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes